18
| Configuration
Alarm name Explanation Do the following
Low supply air temperature
Supply air temperature is too low.
Active: (Outdoor air temperature
sensor measures < 0°C) AND (Supply
air temperature sensor measures <
5°C)
Returned: (Supply air temperature
sensor measures > 10°C)
Check the heat exchanger and re-
heater or refer to Point 2 in
“Troubleshooting” menu.
CO₂
External CO
2
sensor malfunction. Check that sensor is connected
properly and cable is not damaged.
In case sensor wireless – check
RS485 gateway status and sensor
status in HMI.
Contact your installation company or
place of purchase.
RH
External relative humidity sensor
malfunction.
Check that sensor is connected
properly and cable is not damaged.
In case sensor wireless – check
RS485 gateway status and sensor
status in HMI.
Contact your installation company or
place of purchase.
Output in manual mode
One or more of analogue outputs are
in manual mode.
Check Service menu for Output
settings, and check all configured
outputs to be in Auto mode. If any
outputs in Manual - change back to
Auto mode.
Alarm Fire Alarm can be only activated with a digital signal from a smoke/fire detection system or similar. Digital in-
put has to be configured as Fire Alarm for this alarm to work.
Digital output configured as Sum Alarm sends a generic signal every time the alarm is triggered, except for alarms Ex-
ternal stop, Output in manual mode and Manual Fan Stop. This signal does not specify the alarm type.
5.7.3 Week Schedule
The unit can be configured to operate at set airflow levels up to two time periods (00:00–23:59) on user
selected days.
Week Schedule is active only during AUTO mode.
5.7.3.1 Schedule airflow settings
Touch settings icon to go to SCHEDULE AIRFLOW SETTINGS menu. In this menu set airflow level for
scheduled and unscheduled periods. Available levels: Off, Low, Normal, High or Demand.
Set temperature setpoint offset for both periods (-10°C – 0°C).
Demand level is available only if Demand Control or External fan function is active.
5.7.3.2 Edit schedule
Touch icon at the bottom left corner of the screen to add a new schedule or press EDIT button to modify
already added schedule.
To configure the schedule:
1. Set the time. Touch the START TIME or END TIME values to change time. Use arrow buttons
and to increase
or decrease value. Confirm with OK button.
Note:
Scheduled time can start but never end at midnight (00:00). The latest END TIME period is 23:59.
Scheduled time cannot go to the next day.
12 or 24 hour time format can be changed in System Preferences menu.
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